From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: _AX Undeclared?
Date: Tue, 24 Mar 1998 19:00:31 -0500
Organization: Two pounds of chaos and a pinch of salt.
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maverick wrote:
> 
> void setMCGA() {
> _AX = 0x0013;
> geninterrupt(0x10);
> } and all I get is an error :[ '_AX' undeclared ( first use this
> function)]
> Uh? Is this got to do something with pmode gcc operates in? How it can
> be done then?
> You see, I just switched to C/C++. (Was coding in asm and I want to
> combine the two of them.) Any help and/or web-reading material will be
> appreciated.
> thx

Read chapters 10, 17, and 18 of the DJGPP Frequently Asked Questions
list, available from SimTel as v2/faq210b.zip or online at
http://www.delorie.com/djgpp/v2faq/.  Specifically, chapter 17.8 tells
you what to do with those Borland-style pseudoregisters.

FYI, that code is written for Borland-style real mode compilers, and
will probably require extensive modifications to work with DJGPP!


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